Rubber crawler



FIG. 1 is a front elevational view thereof of a rubber crawler showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a cross sectional view thereof taken along line 7—7 in FIG. 1; and,

FIG. 8 is a cross-sectional view taken along line 8—8 in FIG. 1. 

The ornamental design for a rubber crawler, as shown and described. 